Eventually, manufacturers went to a micro groove, and now have developed a virtually square edge finish that gives the same results as an unfinished floor installation.

The house has square edge weatherboarding and a tall lateral gable roof with a half-moon louvered vent in each gable end.

It loses a lot of the blunt, square edges of the current vehicle and replaces them with curvier lines and wraparound front and rear screens.

Look out for things from nature: the weirder their shape, the better, offering a welcome break from square edges and solid surfaces.

These wheels usually feature square edges for more traction around corners or in carves.